Hydrometer for electrical accumulators



Sept. 15, 1936. A. w. BROWNE HYDROMETER FOR ELECTRICAL ACCUMULATORS Filed July 14, 1934 WWW WITNESS.

moves in indicating the range of specific gravity variations oi. the electrolyte.

2. In a hydrometer as claimed in claimhthe pointer being formed with a knife edge to minimize the tendency ot gas bubbles to adhere thereto.

3. A hydrometer for an electric accumulator comprising, a support, a pointer pivotally mounted on said support and whose centre of gravity does not coincide with whose centre of mass, indicia on said support co-operating with said pointer, and stops on said support co-operating" 'with said pointer and preventing complete rotawith said lugs upon the sheet to prevent warping of the latter at the scale over which the pointer pointer adjacent the pivot, indicia on said sup port co-operating with said pointer, andstopson said support cooperating with said pointer and preventing complete rotation thereof and also serving to space said support from the oi 6 the accumulator.

5. A hydrometer for an electric accumulator comprising, a flat plate adapted for insertion between the container and the plates of the accumulator, said i iat'plate being independent of 10 said container and said plates, a pointer pivotaliy mounted on said flat plate and whose centre of gravity does not coincide with the point at which said pointer is pivoted, indicia on said flat plate co-operating with saidpointer, and stops on 18 said flat plate co-operating with said pointer to prevent complete rotation thereof and alsoserving to space said flat plate from said container. 

